//===============================================================================
// Microsoft patterns & practices Enterprise Library Contribution
// Policy Injection Application Block
//===============================================================================

using System;
using Microsoft.Practices.Unity;
using Microsoft.Practices.Unity.InterceptionExtension;

namespace EntLibContrib.PolicyInjection.CallHandlers
{
	/// <summary>
	/// An attribute used to apply the <see cref="SynchronizedCallHandler"/> to the target.
	/// </summary>
	[AttributeUsage(AttributeTargets.Class | AttributeTargets.Property | AttributeTargets.Method)]
	public sealed class SynchronizedCallHandlerAttribute : HandlerAttribute
	{
		#region Construction
		/// <summary>
		/// Creates a new <see cref="SynchronizedCallHandlerAttribute"/>.
		/// </summary>
		public SynchronizedCallHandlerAttribute()
		{
		}
		#endregion

		#region Protected Methods
		/// <summary>
		/// Derived classes implement this method. When called, it
		/// creates a new call handler as specified in the attribute
		/// configuration.
		/// </summary>
		/// <param name="container">The <see cref="T:Microsoft.Practices.Unity.IUnityContainer"/> to use when creating handlers,
		/// if necessary.</param>
		/// <returns>A new call handler object.</returns>
		public override ICallHandler CreateHandler(IUnityContainer container)
		{
			return new SynchronizedCallHandler(Order);
		}
		#endregion
	}
}
